Reconstruction of an image of an object at least partially hidden by a flame

摘要

Disclosed a system for reconstructing an image of an object hidden by a flame. The system comprises a laser source emitting an infrared radiation and a lensless, off-axis interferometric arrangement that divides the infrared radiation into an object beam and a reference beam. The object beam is enlarged and then irradiates the object, that scatters it. The reference beam is enlarged and then interferes with the scattered object beam, so as to create a hologram. The system comprises an infrared detector which detects the hologram and a processor that reconstructs the image of the object by numerically processing the hologram.

主权项

1. A system comprising:
a laser source configured to emit infrared radiation having a wavelength between 3 μm and 1 mm; an interferometric arrangement configured to divide said infrared radiation into an object beam to irradiate at least a portion of an object at least partially hidden by a flame and to be scattered by said object and a reference beam that interferes with said scattered object beam to create a hologram of said object; an infrared detector configured to detect said hologram; and a processor configured to reconstruct an image of said object at least partially hidden by the flame by numerically processing said hologram.